Schneider Electric (Barber Colman) MK-2690 Proportional Control Els PW 17895 and wheels must be sourced

and wheels must be sourced separately or transferred from the existing assembly if they remain within spec

or the control board flashing a specific LED code for "pressure switch open

and Corsair equipment

When troubleshooting a system that won't ignite or is throwing a pressure switch lockout code

If the boiler is experiencing lockout errors (like E 02) or "no spark" conditions during the ignition sequence

Schneider Electric (Barber Colman) MK-2690 Proportional Control Els PW 17895 and wheels must be sourcedThe Schneider Electric Barber Colman MK 2690 is a specialized pneumatic valve actuator engineered for precise proportional control in demanding HVAC applications. This compact unit features a 6 sq. in. effective area and is primarily designed to drive 1 2" to 2" globe valves, including the VB 7000 series and discontinued VB 9xxx models. Built with a rugged die cast aluminum housing and a NEMA 1 enclosure, this actuator ensures linear movement with a 1